+ add the sn.

module/user/control.php

@@ -341,6 +341,7 @@ class user extends control
             $header['title'] = $this->lang->user->login;
             $this->view->header  = $header;
             $this->view->referer = $this->referer;
+            $this->view->s       = $this->loadModel('setting')->getItem('system', 'global', 'sn');
             $this->display();
         }
     }

module/user/view/login.html.php

@@ -67,7 +67,7 @@ $(document).ready(function(){
     <div class='yui-d0' id='debugbar'><iframe frameborder='0' name='hiddenwin' id='hiddenwin' class='hidden'></iframe></div>
     <div id='poweredby'>
     powered by <a href='http://www.zentaoms.com' target='_blank'>ZenTaoPMS</a>(<?php echo $config->version;?>). <br />
-    <script src='http://www.zentaoms.com/check.php?v=<?php echo $config->version;?>'></script>
+    <script src='http://www.zentaoms.com/check.php?v=<?php echo $config->version;?>&s=<?php echo $s;?>'></script>
     </div>
   </form>
 </div>